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| | Purifier Units Delivered to Aixtron AG (Site not responding. Last check: 2007-11-05) |
 | | Johnson Matthey hydrogen purifiers, manufactured in Wayne, Pennsylvania and Letchworth, England, are the technology of choice for epitaxy and zero-gas generators used in the calibration of the most technologically advanced analytical equipment. |
 | | In 1964, Johnson Matthey invented and patented the palladium alloy diffusion technology that permitted, for the first time, cost- efficient, high-capacity purification of ultrapure hydrogen gas. |
 | | Additionally, the Hydrogen Technology Group, which emphasizes engineering, design, worldwide service and support, is working to expand the use of its equipment in silicon semiconductor applications -- especially new areas such as silicon germanium epitaxy. |
| www.hydrogentechnology.com /html/purifier_units_delivered_to_ai.html (383 words) |
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